pdo pcl plla difference

PDO

Polydioxanone (PDO) material was first used for absorbable sutures in surgery. PDO materials have complete biocompatibility and have been used in medicine for many years as surgical suture materials. It is usually completely dissolved and absorbed within 6 to 9 months.

The suture used for PDO thread carving has changed from traditional monofilament suture to "barbed" thread. Korean PDO thread is exactly this kind of barbed suture. It produces more collagen than regular absorbable threads. At the same time, the "thorn" can "grab" the skin to achieve the effect of tightening and lifting.

PCL

PCL line, the abbreviation of polycaprolactone line, is Poly Caprolactone, which has good biocompatibility, memory, bioabsorbability and degradability, and is widely used in various fields. The texture of pure PCL material is relatively soft, which is not conducive to the preparation of strong barbs, but PCL has strong compatibility with other materials, and different formulation ratios can derive different wires. Therefore, PCL materials on the market now In fact, they are all mixed materials based on PCL.

The degradation process of PCL line can be divided into two stages. The first stage shows that the molecular weight is continuously decreasing, but there is no deformation, which is similar to the isovolumetric degradation of hyaluronic acid; and when the molecular weight drops to a certain level, the physical structure cannot be supported. When it enters the second stage of degradation, the volume begins to shrink and is gradually absorbed by the human body. However, because the single wire mentioned above is soft, it is usually used in combination, so the maintenance time is measured by the mixed wire.

PLLA

The main components of the PLLA line are L-polylactic acid and bone collagen. The PLLA line is also called the beauty line.

Holding time: The digestion and absorption speed of PLLA line is relatively slow, and the effect is slow (it only works after 3 months), and the actual effect reaches the best practical effect in about 13 months. In addition, the stimulating self-collagen powder is transformed into it. Theoretically, it is made with PLLA line. The protein line can last for 5-7 years.